0
4
8
8
2
2
1
4
2
0
9
9
0
4
2
1
5
7
0
8
1
8
0
4
1
7
4
8
4
8
0
9
1
4
7
8
0
4
6
2
4
2
0
4
9
1
4
9
1
4
7
2
9
4
8
0
7
0
0
1